Frame for covering a wall break-through intended to receive a door or the like

ABSTRACT

A frame for covering a wall break-through intended to receive a door or the like, which includes lining means and two facing members arranged substantially at a right angle to and at the two end faces of said lining means, and in which the two facing members are provided with dowel-shaped wall connecting members extending perpendicularly with regard to the plane of said facing members and connectable to those inner sides of the facing members which are not visible from the outside of the frame. The wall connecting members are adopted to be plugged into corresponding fitting wall recesses, at least one of the two facing members and the lining means having those surfaces thereof which face and contact each other provided with plug means including dowel-shaped connecting members and corresponding recesses for receiving said last mentioned members.

United States Patent 1191 Burgers 1451 May 7,1974

[ FRAME FOR COVERING A WALL BREAK-THROUGH INTENDED TO RECEIVE A DOOR ORTHE LIKE [76] Inventor: August Burgers, am Bildchen 37,

5141 Gerderath, Germany [22] Filed: Apr. 19, 1972 [21] Appl. No.:245,515

[52] US. Cl 52/212, 52/585, 52/753 D, 52/753 E [51] Int. Cl E06b l/08[58] Field of Search 52/211, 514, 204, 585, 52/208, 212, 656; 287/2092E, 20.92 D; 49/380, 504

[56] References Cited UNITED STATES PATENTS 2,728,956 1/1956 Jackson49/380 3,331,623 7/1967 Baresel-Bofinger 287/2092 E 3,572,781 3/1971Merrilees et a1 52/585 X 2,71 1,564 6/1955 Jackson 49/380 2,753,6027/1956 Ringle 52/212 X 3,338,008 8/1967 Sklar 52/211 3,599,373 8/1971Coykendall... 49/380 3,501,866 3/1970 Johnson 49/380 FOREIGN PATENTS 0RAPPLICATIONS 756,856 12/1933 France 49/504 10/1970 Germany ,.52/21l10/1970 Germany ..52/211 [57] ABSTRACT A frame for covering a wallbreak-through intended to receive a door or the like, which includeslining means and two facing members arranged-substantially at a rightangle to and at the two end faces of said lining means, and in which thetwo facing members are provided with dowel-shaped wall connectingmembers extending perpendicularly with regard to the plane of saidfacing members and connectable to those inner sides of the facingmembers which are not visible from the outside of the frame. The wallconnecting members are adopted to be plugged into corresponding fittingwall recesses, at least one of the two facing members and the liningmeans having those surfaces thereof which face and contact each otherprovided with plug means including dowel-shaped connecting members andcorresponding recesses for receiving said last mentioned members.

4 Claims, 2 Drawing Figures murmur 184 11808758 SHEET 1 BF 2 PATENTEBIAYnan I 3808 758 SHEET 2 BF 2 FRAME FOR COVERING A WALL BREAK-THROUGHINTENDED TO RECEIVE A DOOR OR THE LIKE The present invention relates toa frame or sash for covering or facing a wall breakthrough effected fora door or the like, which frame or sash comprises a lining and twocovers or sashes arranged rectangularly on the two edges of the lining.

In most instances, such frames or sashes of U-shaped cross section areemployed in connection with a nailedon door while the covering of theframe or sash on the side of the door forms a folded cover and theoppositely located cover or facing on the ornamental side of the frameor sash forms the ornamental covering or facing. It is the generaltendency to connect such frames or sashes to the masonry by means ofnon-visible connecmeans which prior to the mounting of the wooden frameor sash were mounted in the wall breakthrough or blind lining membersnailed onto the wall or inserted into the same. Both types ofconnections are, however, expensive and require a long assembly timewhich cannot be estimated precisely in advance for constructionestimates. The blind lining members have to be mounted precisely andhave to be aligned so that the free distance between them corresponds toa certain specified measurement and that the frame or sash with itslining can be fitted into the blind lining members and will have avertical position and can be connected thereto. Furthermore, the holdingmeans have to be -mounted at definite portions of the blind liningelewere mitered and connected together. In view of the high cost ofproduction of a mitered connection, more recently the two facing partsare no longer mitered but are butt jointed. With frames or sashes of theabove mentioned type which are now prefabricated and either in the formof a packet or individual elements are transported by the manufacturerto the building lot where they are assembled, it is cumbersome andtimeconsuming and expensive to connect the individual members of thefacing in the heretofore customary manner by gluing them together.Visible connections such as screw connections or nails aretotally-unsuitable with frames of natural wood or finished varnishedindividual parts. The employment of screw clamps in order to preciselyand firmly press the facings together during the hardening of the glueand to obtain a gaptight connection will with mitered facings encounterconsiderable difficulties. Parts which have been glued together by buttjointing the same make the job somewhat easier, but the butt jointconnection is, especially with natural wood frames or sashes of finishedvarnished individual parts, not suitable for optical reasons.

It is, therefore, an object of the invention to provide a frame or sashwhich at the building site can from prefabricated and easilytransportable individual parts be assembled in a minimum of time and atlow cost.

This object and other objects and advantages of the invention willappear more clearly from the following specification, in connection withthe accompanying drawings, in which:

FIG. 1 represents a cross section through a portion of a wooden frame orsash, which cross section may be that of one of the two vertical sideparts or of the horizontal upper part of the frame or sash.

FIG. 2 shows a view and partially a section of a cor ner of the sash orframe with the cover or facing.

The face or frame according to the present invention is characterizedprimarily in that the two facings are provided with dowel-shaped wallconnecting members which are adapted to be connected to the non-visibleinner side of the facings, said wall connecting members being adapted tobe inserted into corresponding wall recesses, and is furthermorecharacterized in that at least one of the two facings and the lininghave those non-visible connecting surfaces which face each otherprovided with plug connections comprising dowelshaped connectingelements and corresponding recesses. With the frame or sash according tothe invention,

not the lining receives the connection with the masonry, but the facing.Preferably, the wall connecting members are formed by cylindrical dowelsso that ordinary bores may be provided as fitting recesses on the wallsides whereby the mounting of the sash or frame will be extremelysimple. By means of a templet which practically looks like a facing, andwhich at those areas to which the connecting dowels are to be fastenedon the inner sides of the facing, is provided with bores extendingtherethrough and is first placed upon one wall side in aligned position,it is possible first to bore dowel holes by an ordinary drilling machineinto said wall side. By means of the same templet, after placing it onthe other wall side, in the same manner dowel bores are bored into theother wall side. Connecting dowels are then placed into the dowel boresand in this way the facing is connected to the wall. This connectingmethodv is equally well advantageous for frames or sashes of wood,joiner plates or the like, with which connecting members prior or afterinsertion into the wall recesses are placed into fitting recesses on theinner sides of the lining and may be glued in, and also for frames orsashes of synthetic material or metal. With the frame or sash accordingto the invention, the lining is, by means of the dowel-shaped connectingelements held fast by the facings connected to the wall. The connectingelements and the fitting recesses in the connecting surfaces betweenlining and facing may, especially with frames or sashes of wood,likewise have a simple round shape. These plug connections can in theplant producing the frame precisely .be prefabricated and'then have tobe merely assembled at the building site. In this connection it isparticularly advantageous and practical when also the connecting membersand the fitting recesses are arranged perpendicular to the plane of thefacings so as to be plugged into each other.

Referring now to the drawings in detail, the frame or sash comprises alining l, a cover or facing 2 and an ornamental cover 3. The two covers2 and 3 have the inner side thereof which is facing a wall 4 and is notvisible from the outside provided with bores 5 into which have beeninserted connecting dowels 6 which extend perpendicular to the plane ofthe facings and wall sides. These connecting dowels 6 are adapted to beinserted into dowel holes 7 on the wall sides, said holes having beenbored by means of a templet placed upon the wall sides and aligned onprecisely prefixed areas of the wall. Dependingon the thickness of theplaster or cover or the depth of the bores in the wall, connectingdowels of different length can be inserted into the dowel holes of thewall in such a way that they firmly rest in the wall and protrudetherefrom with the desired and necessary length. The new covers orfacings have those connecting surfaces 8 thereof which are not visiblefrom the outside and extend in a plane parallel manner to the wall sidesprovided with bores 9 while the lining is provided with bores 10. Theconnecting dowels 11 are adapted to be inserted into the bores 9 and andare likewise perpendicular to the covers or facing which means that theyextend parallelly with regard to the connecting dowels 6. Whenassembling this wooden frame or sash, first the cover 2 is connected tothe lining 1 by means of the connecting dowels l1 and is glued to theconnecting surfaces 8. Thereupon the lining together with the cover 2 ismoved into the wall breakthrough perpendicularly with regard to the walland if the connecting dowels 6 have first been connected to the cover 2,the cover 2 is connected to the wall 4 by inserting the connectingdowels 6 into the holes 7 in the wall. Subsequently, in an analogousmanner, the ornamental facing 3 is connected to the wall 4 whilesimultaneously the connecting dowels 11, provided that they have firstbeen connected to the omamental cover are inserted into the bore 10 ofthe lining whereby the lining is connected to the ornamental facing. Inaddition thereto, these connecting dowels or the connecting surfaces 8between the lining and the ornamental cover may be partially glued totheir respective interengaging surfaces. Lining and ornamental coveroverlap each other to an extent which is greaterthan the occurringtolerances in the thickness of the wall so that the width of the liningdoes not have to be adapted geously, the L-shaped seal consists of asynthetic rubber on a chloroprene basis. This brings about the advantagethat the seal retains a high elasticity whereby a constant satisfactorylow noise closing of the door and tight engagement of the door over itsentire surface and around the seal will be assured. Furthermore, theseal will always remain in its position so as to be able to adapt itselfby elastic deformation to the working of the wood.

According to FIG. 2, in one corner of the frame a vertical side portion21 and a horizontal upper portion 22 of the cover abut each other. Theends of the portions 21 and 22 which engage each other are mitered. Thehorizontal cover portion 22 is provided from its rear side which is notvisible from the outside, with a round recess 23 into which there hasbeen inserted an expansion eccentric 24 in a manner known per se. Theeccentric 24 is provided with a slot, not shown in detail, in order tobe able to turn the same in the recess 23 by means of a screw driver.

The vertical cover portion 21 has one of its mitered surfaces providedwith a cylindrical bore 25 which is perpendicular to the miteredsectional surface. A simple smooth cylindrical clamping or tighteningpin 26 is inserted into said bore 25. That end portion of the tighteningor clampingpin 26 which is closest to the bottom of bore 25 has atransverse bore 27 for receiving a locking pin. This locking pin whichis not illustrated' and may consist, for instance, of a nail, ishammered in from the rear side of the cover into the vertical coverportion 21 until it extends into the transverse bore 27 and therebyconnects the pin 26 firmly and in a safe manner to the cover portion 21.It is only this design and connecting manner of the pin 26 which makesit possible to' insert thepin 26 into the narrow end face or sidesurface of a relatively thin wooden board as it is generally used forframes or sashes and covers and which furthermore makes it possible toconnect therein to the thickness tolerances of the wall and no visiblecover 2 forms a rectangularly cutout step for a door.

abutment. The depth of this cutout or step may whenever necessary bepost machined in view of occurring tolerances and this may be done by achip removing operation in conformity with the thickness of the doorplate to be inserted into the sash. A substantially L- shaped seal isinserted into said cutout or step. The leg 12 of said cutout whichextends in a plane parallel manner with regard to the plane of the coveris flush with the visible wide side of the lining 1. The leg 13 whichextends vertically with regard to the plane of the cover is longer thanthe tolerance depth of the recess on the lining face side, saidtolerance depth being measured in a direction perpendicular to the coverplane and the wall sides. In this way, by means of the seal, the postma-'chined recessv surfaces of the lining which are plane parallel andperpendicular to the plane of the coverings can be covered optically sothat with a frame or sash which was finished varnished prior to itsinstallation or was finished veneered no post varnishing or.veneering ofthe post-planed recess will be necessary. Advantasaid pin 26 in such away that neithera splitting or tearing of the wood will result when thepin 26 is connected in the receiving bore. In this way also unduly highclamping and pulling forces will be prevented from accidentally pullingpin 26 out of its receiving bore. That end of the pin 26 which protrudesfrom the cover portion 21 has a hammerhead shape and protrudes from thecover or facing portion 21 to such an extent that it can be passedthrough a bore 28 of the horizontal cover or facing portion 22 with thenecessary and sufficient play in this bore 28 into the clampingeccentric occupying its unlocking position. By turng the eccentric 24,the hammer-shaped end of the pin 26 is caught from behind by awedge-shaped portion of the eccentric as shown in the drawing and isadditionally pulled into the horizontal covering or facing portion 22.In this way, the two facing portions are pulled against each other in astrongand in a gap-tight manner.

In order to precisely align the two facing portions and to secure themagainst distortion and shearing, two guiding dowels 29 are providedwhich extend perpendicularly with regard to the mitering surface and areinserted in corresponding guiding bores on the mitering surfaces of thetwo facing portions. The dowels 29 may loosely, i.e., without beingglued extend on both sides into the guiding bores. Advantageously, theclamping or tightening pin 26 has that portion thereof which protrudesfrom the respective receiving bore provided with a non-illustratedmarking which is so arranged with regard to the transverse bore thatwhen the marking is located for instance precisely at the miteringsectional surface of the facing portion 21 and is also perpendicular tothe broad side to the facing portion 21, a nail inserted into the facingportion 21 at the marking point will precisely hit the transverse bore.

As will be seen from the above, the frame or sash according to thepresent invention has in particular the following advantages. All plugconnections between the facing and the wall as well as between thefacing and the lining are not visible from the outside and can beproduced and connected in a precise and simple manner. Holding means forthe frame or sash as they were heretofore required and had to beplastered into the masonry or cemented thereinto or had to be otherwiseconnected thereto will no longer be necessary. The filling in betweenthe masonry and the lining for the frame or sash likewise becomessuperfluous inasmuch as no direct connection of the lining with themasonry exists or is necessary. Inasmuch as the connection of the frameor sash is effected at its facing and therefore the lining can bemaintained in a definite spaced relationship from the masonry, it willbe appreciated that prior to the installation of the frame or sash,blind linings or the like as templet for the plastering of the rawmasonry can be employed and do not have to be removed. When exchangingthe frame or sash or other parts, the effective bores for the connectingdowels can again be used so that additional plastering and papering workwill not be necessary.

From the preceding description it will also be evident that theconnection according to the present invention has the great advantageover all heretofore employed steps in connection with the assembly ofsashes or frames, that the assembly of the sash or frame and itsinstallation into a wall breakthrough can be carried out very quickly,that a gluing at the corner connections of the cover or facing is notnecessary, that the connection, nevertheless, is gap tight and resistantto distortions and shearing, and that all parts of the corner connectionare invisible from the outside.

It is, of course, to be understood that the present invention is notlimited to the specific showing and the specific application asdisclosed hereinbefore, but also comprises any modifications within thescope of the appended claims. Thus, the described connection between twocover or facing portions of a frame or sash can with the-same advantagesalso be employed for other similar or like framework as, for instance,with the covers of so-called through pass (Durchreichen). The connectionmay also in the same manner be advantageously employed in order fromskirtings or moldings which have been prefabricated for reasons of massproduction at standard length, to put together skirtings or moldings ofany desired length in a gap-tight and distortion resistant mannerwithout having to resort to gluing.

What I claim is:

1. A door frame for an opening through a wall to receive a door, saidframe comprising liner members having side surfaces parallel to andspaced approximately the thickness of said wall and extending along thesides and top of said opening and secured together at the corners,facing members for covering the faces of said wall surrounding saidopening, said facing members on each side of said wall having fastenersconnecting the top and side members at the corners and overlapping theside surfaces of said liner members, a plurality of cylindrical-shapeddowel fasteners perpendicular to the faces of said wall and fitting inholes in the faces of said wall and in holes in said facing members ofless depth than the thickness of said facing members to form concealedfasteners, and means to fasten said facing members to opposite sideedges of said liner members, said means comprising cylindrical-shapeddowel fasteners parallel to said first dowel fasteners in holes in oneside surface of said liner members and in holes in the facing members onone side of said wall of less depth than the thickness of said facingmembers to form concealed fasteners, one side edge of the liner membershaving a cutout step inwardly of the side surface on the face oppositethe wall to form a door abutment, the opposite side edge of said linermembers having a cutout step on the opposite face adjacent the wallreceiving the facing member on that side edge, the side surface on saidside edge being formed by the bottom of said cutout step.

2. In a door frame as claimed in claim 1, in which the corners of saidfacing members are mitered, and the members are connected by concealeddowel-shaped fasteners fitting in holes in the mitered members, and aconcealed clamping fastener between said members is operable from therear side of said facing members to draw and secure said mitered memberstogether.

3. A frame in combination according to claim 1, in which the facingmembers include a vertical side piece and a horizontal upper pieceabutting each other so as to form a corner, and which includesdisengageable connecting means holding together said abutting portionsof said side and upper pieces, said disengageable connecting meanscomprising tightening eccentric means rotatably inserted into the backside of one of said pieces and also comprising a straight tightening pinhaving a smooth cylindrical portion inserted into a receiving boreformed in the other one of said two pieces forming said corner, saidreceiving bore extending perpendicularly with regard to the contactingsurface of said last mentioned other one piece, said tightening pinhaving its cylindrical portion provided with a transverse bore, lockingpin means inserted from the back side of the last mentioned piece andengaging said transverse bore so as to firmly connect said pin meanswith said last mentioned piece, that end of said locking pin means whichis adjacent to said tightening eccentric means being hammer head shapedand being adapted to extend into the said tightening eccentric means,those surfaces of a corner forming pieces which contact each other atsaid corner being provided with guiding means detachably engagingperpendicularly with regard to the said contacting surfaces.

4. A frame in combination according to claim 3, in which the two piecesforming a corner have their abutting surfaces at said corner mitered,and in which the tightening pin means extend perpendicularly with regardto said abutting surfaces, said guiding means comprising at least twodowels extending at a right angle with regard to said abutting surfacesand engaging corresponding guiding bores in both of said corner formingpieces.

1. A door frame for an opening through a wall to receive a door, saidframe comprising liner members having side surfaces parallel to andspaced approximately the thickness of said wall and extending along thesides and top of said opening and secured together at the corners,facing members for covering the faces of said wall surrounding saidopening, said facing members on each side of said wall having fastenersconnecting the top and side members at the corners and overlapping theside surfaces of said liner members, a plurality of cylindrical-shapeddowel fasteners perpendicular to the faces of said wall and fitting inholes in the faces of said wall and in holes in said facing members ofless depth than the thickness of said facing members to form concealedfasteners, and means to fasten said facing members to opposite sideedges of said liner members, said means comprising cylindrical-shapeddowel fasteners parallel to said first dowel fasteners in holes in oneside surface of said liner members and in holes in the facing members onone side of said wall of less depth than the thickness of said facingmembers to form concealed fasteners, one side edge of the liner membershaving a cutout step inwardly of the side surface on the face oppositethe wall to form a door abutment, the opposite side edge of said linermembers haVing a cutout step on the opposite face adjacent the wallreceiving the facing member on that side edge, the side surface on saidside edge being formed by the bottom of said cutout step.
 2. In a doorframe as claimed in claim 1, in which the corners of said facing membersare mitered, and the members are connected by concealed dowel-shapedfasteners fitting in holes in the mitered members, and a concealedclamping fastener between said members is operable from the rear side ofsaid facing members to draw and secure said mitered members together. 3.A frame in combination according to claim 1, in which the facing membersinclude a vertical side piece and a horizontal upper piece abutting eachother so as to form a corner, and which includes disengageableconnecting means holding together said abutting portions of said sideand upper pieces, said disengageable connecting means comprisingtightening eccentric means rotatably inserted into the back side of oneof said pieces and also comprising a straight tightening pin having asmooth cylindrical portion inserted into a receiving bore formed in theother one of said two pieces forming said corner, said receiving boreextending perpendicularly with regard to the contacting surface of saidlast mentioned other one piece, said tightening pin having itscylindrical portion provided with a transverse bore, locking pin meansinserted from the back side of the last mentioned piece and engagingsaid transverse bore so as to firmly connect said pin means with saidlast mentioned piece, that end of said locking pin means which isadjacent to said tightening eccentric means being hammer head shaped andbeing adapted to extend into the said tightening eccentric means, thosesurfaces of a corner forming pieces which contact each other at saidcorner being provided with guiding means detachably engagingperpendicularly with regard to the said contacting surfaces.
 4. A framein combination according to claim 3, in which the two pieces forming acorner have their abutting surfaces at said corner mitered, and in whichthe tightening pin means extend perpendicularly with regard to saidabutting surfaces, said guiding means comprising at least two dowelsextending at a right angle with regard to said abutting surfaces andengaging corresponding guiding bores in both of said corner formingpieces.